A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fatigue and Deflection of Asphaltic Concrete Pavement
The study described consisted of 3 phases having respectively, the following objectives: (1) To correlate the magnitude and number of repetitions of deflection with pavement performance so that a permissible deflection value could be established. (2) To determine the number of repetitions of a given load to cause failure from tests on beam specimens removed from the pavements tested in Phase 1. (3) To establish the asphalt concrete mix design that will best withstand repeated deflections of the magnitude found in Phase 1. The general conclusions of the study are as follows: (1) The Benkelman Beam effectively evaluates the serviceability of asphaltic concrete pavements. (2) The deflection of pavements increases with increase in traffic until failure occurs. (3) Pavement deflections of 0.020 inch or less under maximum wheel load (9 kip) indicate a satisfactory condition. (4) Deflections of more than 0.020 inch under maximum load may be decreased to a safe amount by overlaying with asphalt concrete. (For Oregon Class B asphalt concrete, a reduction in deflection of 0.0038 inch per inch of overlay thickness is assumed). (Author)
Fatigue and Deflection of Asphaltic Concrete Pavement
The study described consisted of 3 phases having respectively, the following objectives: (1) To correlate the magnitude and number of repetitions of deflection with pavement performance so that a permissible deflection value could be established. (2) To determine the number of repetitions of a given load to cause failure from tests on beam specimens removed from the pavements tested in Phase 1. (3) To establish the asphalt concrete mix design that will best withstand repeated deflections of the magnitude found in Phase 1. The general conclusions of the study are as follows: (1) The Benkelman Beam effectively evaluates the serviceability of asphaltic concrete pavements. (2) The deflection of pavements increases with increase in traffic until failure occurs. (3) Pavement deflections of 0.020 inch or less under maximum wheel load (9 kip) indicate a satisfactory condition. (4) Deflections of more than 0.020 inch under maximum load may be decreased to a safe amount by overlaying with asphalt concrete. (For Oregon Class B asphalt concrete, a reduction in deflection of 0.0038 inch per inch of overlay thickness is assumed). (Author)
Fatigue and Deflection of Asphaltic Concrete Pavement
O. A. White (author)
1965
100 pages
Report
No indication
English
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